Japanese Knotweed Root Barrier

Root barriers only work if they are correctly specified and professionally installed. 

Our consultants have spent the last 12 years working with root barriers, perfecting installation technics and refining how root barriers are specified to ensure they effectively block Japanese knotweed.
PBA Solutions offer market leading Flexi-root barrier and Bio-root barrier products that have a design life in excess of  50 years. Both can be heat welded while the Bio barrier is a permeable dual action barrier having a micro perforated layer of copper sandwiched between two geo membranes. The copper layer inhibits root growth and the geo membranes act as a physical barrier.   

The PBA advantage:

Our root barrier installations are backed up by:
  • Sales, advice and professional installation including site welding
  • Accredited Japanese knotweed specialists being founder members of the Property Care Association (PCA) Invasive Weed Group having been vetted as being professional run business 
  • Trust Mark Approved invasive weed company, independently checked and operating to Government endorsed standards  
  • Fully trained technicians; SSTS site safety supervisor trained
  • CSCS card holders for Construction industry safety standards
  • NPTC qualified PA1 & PA6AW for herbicide application
  • Fully insured with 5 million public liability and 5 million professional indemnity insurance
  • Access to specialist 25 year structural guarantees against damage caused by knotweed
  • Access to specialist 10 year re-treatment guarantees
  • 12 month Warranties available 

Root barrier services:

Products: PBA offer several root barrier products namely Bio-root Barrier and Flexi-root barrier for knotweed installations. We also advise on installations specifying sand layers or protection layers. Barriers can be ordered to specific sizes to remove the need for site welding or we can supply specialist jointing tape supplied on 50 metre reels 300mm wide. PBA also have PDF and CAD installation drawings and instructions for specifiers. 
Installation:  PBA's technicians have been manufacturer trained to install and weld root barrier. This enables PBA to offer a full design and installation service. PBA have perfected technics to  bond root barriers to structures incuding concrete foundations, piles and pile caps, service pipes and ducting. All installations are recorded and documented so that the legacy of the installation is known to future property managers. 
Root barrier guarantees: Where PBA are employed to install root barrier as part of a Japanese knotweed remediation package we can provide an insurance backed 25 year structural guarantee against damage caused by Japanese knotweed. At the same time all our products have a design life in excess of 50 years. PBA are the industries leading specialist in knotweed barrier solutions.
Root barrier design: Where root barriers are an integral part of the construction process PBA are able to provide a CAD design and build service. PBA are able to specify root barrier solutions for underground structures, foundations. Where knotweed has to be contained within root protection zones of trees root barrier can be design to stop knotweed from impacting other areas of site. Design details can also be developed for root barrier interfaces. Our root barrier and design consultancy service is backed up with £5 million professional indemnity insurance.